Fatal error: Declaration of Members_Only_Nav_Menu_Walker::start_lvl(&$output, $depth) must be compatible with Walker_Nav_Menu::start_lvl(&$output, $depth = 0, $args = null) in /customers/5/2/3/cwdebanier.nl/httpd.www/wp-content/plugins/members-only-menu-plugin/members-only-menu-plugin.php on line 37